[OSM-talk-fr] grèves Loire

[ades]

Je viens de voir qu’i y a un tag qui s’appliquerait bien. en tous cas pour les Bras de Saint-Aubin et de Sainte-Gemmes. 
Peut être en rajoutant’seasonal=*’

Voir ici : https://wiki.openstreetmap.org/wiki/Tag:waterway%3Driverbank#Varying_water_level_river
Riverbed

natural <https://wiki.openstreetmap.org/wiki/Key:natural>=riverbed <https://wiki.openstreetmap.org/wiki/Tag:natural%3Driverbed> is sometimes used to define the area of the riverbed.

River islands and sandbanks

It is fairly common practice not to map non-permanent and quickly changing islands (sandbanks) in rivers. Vegetation cover on river islands can sometimes be used as an indicator for their permanency although it can also be misleading - there are many examples of vegetation free river islands that are stable for many years. When mapping from aerial or satellite imagery comparing images from different years can be very helpful. 


-------------- section suivante --------------
Une pièce jointe HTML a été nettoyée...
URL: <http://lists.openstreetmap.org/pipermail/talk-fr/attachments/20181008/e0903f3e/attachment.htm>